Swift:网络数据的解析和模型的创建

demo：https://gitee.com/xieyinghao/Swift_ModelDemo.git

 func loadDataByAFN() {
        NetworkTools.POST(url: "http://app.u17.com/v3/appV3_3/ios/phone/rank/list", params: nil, success: { (json) in
            
            let newStr = String(data: json, encoding: String.Encoding.utf8)

            let dict = self.getDictionaryFromJSONString(jsonString: newStr!)
            
            print("\(dict)")
            
            或者：
            let decoder = JSONDecoder() //decoder 字符串转模型类
            let model = try? decoder.decode(DMModel.self, from: json)
            self.model = model
            self.tableView.reloadData()



        }) { (state_code, message) in
            
        }
    }
    
    func getDictionaryFromJSONString(jsonString:String) ->NSDictionary{
        
        let jsonData:Data = jsonString.data(using: .utf8)!
        
        let dict = try? JSONSerialization.jsonObject(with: jsonData, options: .mutableContainers)
        if dict != nil {
            return dict as! NSDictionary
        }
        return NSDictionary()
        
        
    }